Car-heating system.



Patented June 2, 1914.

3 SHEETS-$HBBT 1.

W. L. GARLAND.

GAR HEATING SYSTEM.

APPLICATION FILED JAN. 24, 1910.

Patented June 2, 1914.

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W. L. GARLAND.

GAB. HEATING SYSTEM.

APPLICATION FILED JAILM, 1910.

1,098,619, Y Patented June2,191

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VTILLIA'M L. GARLAND, 0F LLANERGH, PENNS'IZ'LVANIA, AiEoI Ztl'lUPv, BY IBIESNE AS- gIG-NMEN'IS, T0 STANDARD HEAT AND VENTILATIJ'JN GOMIEANY, ll l l, OF NEW YGRK, N. '55., A. CUBPORATIOTN OF Na a -N YORK.

CAR-HEATING SYSTEM.

ea ers,

Application filed January 1910.

To all whom it may concern:

Be it known that l, Wrnmnwr L. GARLAND, a citizen of the United :ltates, residing at lilanerch, iu the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Can Herding Systems, of which the following is a full, clear, and exact description, such will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to heating systems, and with regard to the more specific fez tures thereof, to heating systems for use in railway cars.

One of the objects thereof is to provide automatically controlled heating apparatus of simple construction and reliable and sensitive action.

Another object is to provide in connection witi apparatus of the above nature, simple and positive inanual adjusting means.

Another object is to provide apparatus of the nature first above described, in which the parts are readily accessible and are not susceptible to wear or derangement in use.

Uther objects will be in part obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

in the accompanying drawings, wherein is shown one of various possible e1nbodimerits of my invention, Figure 1 is a side elevation thereof; Fig. 2 is a plan View of the same; Fig. 3 is a sectional elevation taken on an enlarged scale substantially on line of Fig. 2; Fig. 4; is a similar view taken substantially along line cy-y of Fig. 2; Fig". 5 is across section takenalongline act of at; Fig. 6 is a sectional plan view taken along the line Z).7) of Fig. a; Fig. 7 is a sectional view taken along the line c-c of Fig. 4.

Similar reference characters refer to similar parts throughout the several views of the drawings.

Referring now to Fig. 1 of the drawings,

Specification of Letters Patent.

there is shown a system of radiating pip ing 1 mounted on a car wall diagrannnati-A Patented June 2, 1914.

Serial. 1510. 539,689.

cally indicated at 2. Th. steam supply pipe 3 which leads from the train pipe or other source of steam supply, terminates Within a fitting t upon. the side wall of the car. T his fitting, as best indicated in Fig. 3 of the drawings, receives at one end the radiating pipe 5, and at the opposite end has threaded therein a radiating pipe (5, both connected in the radiating system above described. Fitting 1- is so shaped as to form a chamber 7 within which the pipe 3 leads, and the discharge from this chamber passes through a valve seat 8 threaded within the wall 9. This wall or partition provides an outer passage 10 of the shape indicated in Fig. 7 of the drawings which leads about a nozzle 11 formed on the seat of the inlet valve, and thus in conjunction with a short spur pipe 12, provides an injector the action or" which will be hereinafter described.

Recurring to Fig. 1. of the drawings, it is to be noted that pipe 6 is clamped as by bracket 13 to the wall of the car and is held fixed at this point so that its expansion or contraction due to varying temperature will cause a movement of the casing or fitting 'l bracket 15, the supports being rounded as indicated in Fig. 3 of the drawings. The entire radiating system is connected to itself as by return bends 1G and 17 whereby steam is permitted to pass from the fitting 4.- through the pipes 5, 18, 19, 20 and 6, to return to the injector. Viithin this piping is connected a "l" 21 from which a pipe 22 leads to a trap diagrammatically indicated at 23.

Referring again to the showing of Flf". 3 of the drawings, there is provided a valve 2% co-acting with the valve seat 8 and having formed thereon a short guiding stem 25 and on its spindle or stem 26 a head 27 slidably fitted within a casing and normally urged outwardly by a spring 29. Valve spindle 26 is provided with shoulders 30 between which the forked end of a crank 31 passes. This crank is mounted upon a rock shaft 32, which passes tl'irougl'i the walls of the fitting a and-is provided at a point outside said fitting with a crank 38, as shown in 7 of the drawings, a suitable stufling box 31 being provided to prevent leakage.- Through this crank an ad This eye-bolt has threaded thereon an adjusting nut 41 pressing within the casing a spiral spring 42. Upon this eye-bolt at a point without the casing 4: are lock nuts 43 whereby the range of movement of the eyebolt toward the casing is limited. It will be seen that by this arrangement of parts any rotation of the adjusting shaft 35 will occasion a variation in the effective length of the connection, comprising crank 33 and eye-bolt 39 leading to the rock shaft 32. If the eye-bolt be assumed to be fixed, such adjustment will occasion a slight rocking of the rock shaft 32 and consequent movement of the valve 24L with respect to its seat. The pivotal connection 4A of the casing 40 with the bracket 15 is best shown in Fig. 5 of the drawings, and it may be noted that this form of connection permits a slight rocking of the casing in the action of the apparatus.

The operation of the above described embodiment of this invention is as follows: Assuming steam to pass through the inlet pipe 3 to the chamber 7 0f the fitting 4:, its entry to the system is controlled in accordance with the relative positions of the valve 24: and valve seat 8. If this valve be withdrawn from its seat the steam will enter producing a jet through the nozzle 11 and the spur pipe 12. This steam passes through the system of radiating pipes above described and returns through the pipe 6 from which it is drawn through the injecting action of the jet of live steam and re-circulated in the system. Any drip or water of condensation is withdrawn by the drip pipe 22, or if desired, the system may be open to the atmosphere at this point. spring 29 normally urges the valve 24: and valve seat 8 toward one another and the opening of the former and its relative position with respect to the seat, are controlled in accordance with the temperature of the radiating pipe 6. This pipe being connected with the fitting t moves the same bodily with respect to the car as it contracts or expands and upon the apparatus being set to maintain a certain desired temperature of radiating surface, as by means of adjusting shaft 35, the expansion of pipe 6 will carry the shaft 32 bodily in a. direction away from the clamp 13. This movement of the shaft 32, assuming the outer end of the crank 33 The to be stationary, will swing the crank 31 to force the valve 24 toward its seat. Although the valve seat is moved in the same direction, nevertheless the movement of the valve due to its actuation through its pivotal point, which is in effect the fulcrum of a lever, will move the valve at a higher rate of speed than that of the seat, and close the same. Any excess expansion of pipe 6 will merely result in a reactive tension upon the eye-bolt 39, which is taken up by the action of the spring 42. As the temperature of the radiating piping falls below the de sired standard, its construction will bodily move the valve seat and the rock shaft 32 in a direction toward the clamp 13, thus opening the valve in a manner which will be clear from the above description. It will thus be seen that the position of the valve is altered in accordance with the temperature of the radiating pipe and any deviation of this pipe from the desired temperature will cause a corresponding adjustment of the position of the inlet valve and bring the radiating surface back to normal temperature. This desired standard temperature of the pipes may obviously be readily varied in accordance with the weather conditions by a simple manual adjustment of the shaft 35, and such adjustment will so vary the position of the inlet valve with respect to its associated parts that a higher or lower temperature of the radiating surface is required to cut off or open the steam supply.

It will be seen that the entire mechanism is readily accessible and that all parts are simple and adjustable and well adapted to withstand the conditions of hard practical use.

As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all mat ter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention, which, as a matter of language, might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In car heating apparatus, in combination, an injector, a conduit connected to discharge into one portion of said injector, a valve-seat member and coacting valve member controlling the passage through the other portion of said injector, said injector and. one of. said members being carried and moved by said conduit in accordance with its expansion under varying temperatures, and means constructed and arranged so as to cause said valve and valve-seat to automatically attain closed relation upon said conduit expanding to a certain extent and to open as said conduit contracts, said means comprising a rock shaft and cranks secured thereto, one of which cranks is connected to one of the valve members, and the other of which is connected to a stationary member.

2. In car heating apparatus, in combination, a conduit fixed at one point and mounted so as to permit it to expand and contract according to variations in temperature, an inlet valve positioned within said conduit, a rock shaft passing through said conduit, a crank upon said rock shaft within said conduit connected with said inlet valve, and a crank upon said rock shaft without said conduit and leading to a relatively fixed point whereby said shaft is rocked and said valve actuated in accordance with the movement of th portion of said conduit through which said rock shaft passes, which move ment is due to the expansion or contraction of the conduit.

3. In car heating apparatus having therein an injector, in combination, a valve member providing a part of the injector, a second valve member coacting with the first valve member and said valve members cooperating to control the flow of steam through the injector, a thermostatic member connected to one of said valve members to move the same in the direction of the other valve member, means for holding the said last mentioned member in position and a spring tending to urge said valve members together, one of said valve members being adjusted by mechanism comprising a shaft and a crank on the shaft, which crank is connected to the said valve member.

l. In car heating apparatus, in combination, a fitting providing a chamber having an inlet opening and an outlet opening, a valve seat carried by said fitting, a valve coacting with said valve seat to control the area of the discharge opening between the valve and its seat, a thermostatic member connected with said valve seat and adapted to move the same in the direction of said valve, means for resiliently holding said valve in position and a spring within said fitting tending to urge said valve and seat together, the means for holding the valve in position comprising an arm within the fitting which engages a stem of the valve, a shaft extending into the fitting and a spring pressed arm on the exterior of the fitting, both of said arms being located on and carried by said shaft.

5. In car heating apparatus, in combination, a valve mem' er, a valve seat member co-acting therewith, a fitting having therein passes, and a sprin said valve members, a radiating pipe fixed at one place and mounted so that it can expand and contract according to variations in temperature, the fitting being secured to the movable portion of said radiating pipe, and means connected to one of said members, and also to a relatively fixed member, said means comprising an eccentric member and manually controlled means adapted to move said eccentric to adjust the relative positions of said valve members.

6. In car heating apparatus, in combination, a valve member, a valve seat member co-acting therewith, thermostatic means connected to one of said members, a manually controlled shaft, a connection leading to one of said first members through one part of which said shaft passes, and an eccentric member upon said shaft having thereon the other part of said connection, whereby the effective length of said connection is varied as said shaft is turned and said eccentric rotated.

7. In car heating apparatus, in combination, a system of radiating piping, one of the pipes of which is fixed at one point to the car, a fitting connected within said pipe at another point and having formed therein a valve seat, a valve within said fitting co-acting with said seat, a rock shaft passing through said fitting, a crank upon said rock shaft Within said fitting connected with said valve, a crank upon said roclc shaft without said fitting, and relatively stationary means with which said last crank is connected.

8. In car heating apparatus, in combination, a fitting having an inlet valve therein, a stationary member with which the said valve is adjustably connected, an expansible thermostatic member and a valve seat coacting with said valve, said valve seat being connected with said thermostatic member so as to be carried by the thermostatic member toward and away from said valve, the connection between the stationary member and the valve comprising a rock shaft which extends into the fitting and a crank within the fitting whereby the valve can be moved by the shaft.

9. In car heating apparatus, in combination, a conduit, an inlet valve positioned within said conduit, a rock shaft passing through said conduit, a crank upon said rock shaft within said conduit connected with said inlet valve, a crank upon said rock shaft without said conduit and leading to a relatively fixed point whereby said shaft is rocked and said valve actuated in accordance with the movement of the portion of said conduit through which said rock shaft tending to urge said valve against said seat.

10. In car heating apparatus, in cembination, a radiating conduit, a valve seat within said conduit, a valve within said conduit cc-acting with said seat, a rock shaft pass ing through said conduit, a crank upon said rock shaft within said conduit connected with said valve, a crank upon said rock shaft without said conduit, means resiliently holding the end of said last crank in fixed position with relation to the car, and means holding said conduit at a point spaced from said rock shaft in fixed position with rela tion to the car.

11. In car heating apparatus, in combination, a radiating conduit, a valve seat within said conduit, a valve within said conduit co-acting with said seat, a rock shaft passing through said conduit, a crank upon said rock shaft within said conduit connected with said valve, a crank upon said rock shaft without said conduit, means resiliently holding the end of said last crank in fixed position with relation to the car, means holding said conduit at a point spaced from said rock shaft in fixed position with relation to the car, and a spring tending to urge said valve toward said valve seat.

12. In car heating apparatus, in combination, an inlet valve, a valve seat, a thermostatic element, means connecting said thermostatic element with said valve and valve seat and simultaneously moving both said valve and said valve seat at difierent speeds in the same direction as said thermostatic element expands or contracts, and manually controlled means adapted to adjust and maintain adjusted the relative positions of said valve and said valve seat.

13. In car heating apparatus, in combina tion, an injector, a conduit connected to discharge through one portion of said injector, a valve-seat member and co-acting valve member controlling the passage through the other portion of said injector, said injector and one of said members being carried and moved by said conduit in accordance with its expansion under varying temperatures, and means constructed so that the other of said members is moved in the same direction as the member with which the injector is moved by said conduit and at a greater speed with a given rate of expansion or con traction of said conduit.

In testimony whereof I affix my signature, in the presence of two witnesses.

WILLIAM L. GARLAND.

Witnesses:

JOHN T. CLARK, E. E. ALLBEE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents. Washington, D. 0." 

